Interference pigment flakes and foils are provided which have color
shifting properties. The pigment flakes can have a symmetrical coating
structure on opposing sides of a reflector layer, can have an
asymmetrical coating structure with all of the layers on one side of the
reflector layer, or can be formed with encapsulating coatings around a
core reflector layer. The coating structure of the flakes and foils
includes a reflector layer, a dielectric layer on the reflector layer,
and a titanium-containing absorber layer on the dielectric layer. The
pigment flakes and foils exhibit a discrete color shift so as to have a
first color at a first angle of incident light or viewing and a second
color different from the first color at a second angle of incident light
or viewing. The pigment flakes can be interspersed into liquid media such
as paints or inks to produce colorant compositions for subsequent
application to objects or papers. The foils can be laminated to various
objects or can be formed on a carrier substrate.